Hello123World

这里有一个有趣的现象，批处理命令（也可能是cmd.exe本身）不能判断无扩展名的文件和文件夹的区别。

@echo off
Md logfile 2>nul || fsutil file CreateNew logfile 0 &Rd logfile & exit
fsutil file CreateNew logfile 0 || Md logfile 2>nul & del logfile &exit
pause
del  logfile || rd logfile & fsutil file CreateNew logfile 0 & exit
rd logfile || del logfile & md logfile & exit
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最终解决代码：

@echo off
Set a=
pushd "%~dp0"
cd logfile && Set a=1 || Set a=0
popd
If %a%==1 rd logfile && fsutil File CreateNew logfile 0  & exit
If %a%==0 del logfile && md logfile  || fsutil File CreateNew logfile 0 
exit
pause
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